Wall-mounted ductless mini-split indoor unit in a modern interior

Ductless Mini-Split Installation

Ductless Mini-Split Installation in Somerville: Cost, Sizing & What’s Involved

If your home doesn’t have ductwork, a ductless mini-split is usually the most practical way to add real cooling and, in most cases, efficient heating too.

Proud to Serve the Somerville Area

Outdoor heat pump unit mounted on a residential building exterior

What’s Included

Site Assessment

A real look at your specific building — wall construction, where a line set can run, electrical panel capacity — before any quote.

Indoor and Outdoor Unit Installation

Wall-mounted, ceiling cassette, or floor-console indoor units, matched to an appropriately-sized outdoor compressor.

Zone Planning

Single-zone for one room or addition; multi-zone for several rooms on independent thermostats.

Electrical and Permit Coordination

A dedicated electrical circuit and a local permit, handled as part of the job.

What It Typically Costs

Real installed cost varies with zone count and system size, but Massachusetts homeowners are typically looking at somewhere in the $4,500–$9,500 range for a single- to multi-zone system, before any Mass Save rebate is applied. Get a firm number for your specific home with a free estimate. See our Mass Save rebate guide →

Get a Free Estimate

Does It Need to Be Cold-Climate Rated?

Yes, for both performance and rebate eligibility. Only equipment on the Mass Save Heat Pump Qualified Products List qualifies for the whole-home rebate, and every listed unit meets the ENERGY STAR Cold Climate spec. See how cold-climate rating actually works, and how it performs at Somerville-area winter temperatures →

How It Works

1. Call or Request an Estimate

Tell us a little about your home and what rooms need conditioning.

2. Site Assessment

A contractor walks the space and confirms what’s actually possible.

3. Quote

A firm number, rebate-adjusted where it applies.

4. Installation

Typically completed in a single day for a single-zone system.

Get Connected With a Local HVAC Contractor

Fast, honest help for mini-split installation in the Somerville area.

Our Services

Also having trouble with an existing system? See our Mini-Split Repair page.